I must change the QoS configuration on a router Cisco 871 (IOS: IP services 12.4(24) T1). The service policy is applied to the routed port, fastethernet4.
Can I do the changes from within the policy-map configuration without removing the service policy? Will the effects take place as soon as I press enter?
If I'll have to remove the service policy before doing any change, will this trigger the port to go down because the policy map is actually policing? I was thinking in that case to put an access list inbound on the WAN port to stop all traffic..